Rebirth for Oneself

After being reborn inexplicably, Wang Yu returned to when he was six years old, and an unknown system appeared in his body. After obtaining the system, Wang Yu can travel through various worlds. The premise is that he has watched movies, animations, and novels in his previous life, and he does not have to worry about danger at all. As a result, Wang Yu began to experience one world after another, and his strength rapidly improved step by step. In the end, when Wang Yu was strong enough and took control of the system, he found that the world he had experienced was not at all what he had imagined. Please recommend and collect This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.